Water purification unit



FIG. 1 is a front perspective view of a water purification unit, showing our new design therefor;

FIG. 2 is a frontal view therefor;

FIG. 3 is a rear view therefor;

FIG. 4 is a side view therefor, showing the left side;

FIG. 5 is a side view therefor, showing the right side;

FIG. 6 is a top plan view therefor; and,

FIG. 7 is a bottom plan view therefor. 

The ornamental design for a water purification unit, as shown and described. 